Abstract: With the continuous development of active distribution network, the integration of a large number of distributed energy sources brings new challenges to the power supply reliability analysis, while it is particularly important to evaluate the reliability of distribution network power supply. In this paper, a pseudo-sequential Monte Carlo simulation method is proposed to evaluate the reliability of distribution network with fans, photovoltaic cells and batteries. The availability of this method is verified by the simulation of IEEE RBTS-BUS6 feeder 4 system and the influence of distributed energy access on the reliability index of distribution network is analyzed.